This paper presents an overview of inspections on board ships, all with the aim of supporting navigation safety and commercial success. Port State Control (PSC) is the control of foreign ships in domestic ports for the purpose of checking the ship's compliance with local and international regulations and conventions for the purpose of navigation safety. Supervision of state-owned ships (Flag state control) involves regular inspections of each ship registered in a specific state to ensure the safety of its cargo and crew members. The definition and implementation of technical standards for the design, as well as the construction and inspection of ships, and the implementation of inspections and inspections on ships is the responsibility of the classification societies. The Maritime Labour Convention (MLC) connects various standards related to the working, living and social conditions of seafarers. The ISM Code defines global standards for ship safety and pollution avoidance. The ISPS Code is an international code for the security protection of ships and ports. The SIRE program contains standard assessments conducted by tanker owners and operators to identify deficiencies (safety, technical and procedural) in the operation of their ships.